Crista junctions are narrow openings that limit the movement of molecules between the intracristae space (inside the folds of the inner mitochondrial membrane) and the intermembrane space, helping to maintain distinct environments within the mitochondrion.

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Crista Junctions

Question 30

Multiple Choice

Crista junctions

A) are large pores.
B) are associated with the movement of materials from the cytosol into the mitochondrion.
C) contain the mitochondrial DNA.
D) are associated with the thylakoid membrane system.
E) limit the movement of products between the intracristae and intermembrane spaces.

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